The present invention relates to the new dicyclic compound and its derivative of formula (I), prodrug, tautomer, stereoisomer, polymorph, solvate, hydrate, metabolin, N- oxide, officinal salt and include their compositions. The invention further relates to prepare above-mentioned noval chemical compound and its derivative, prodrug, tautomer, stereoisomer, polymorph, solvate, hydrate, metabolin, N- oxide, officinal salt and comprising the method for their compositions. These compounds can be treated and prevented with what is related to the various diseases of 4 β of α, 2 cigarette alkali receptor.本發明涉及式(I)的新的雙環化合物及其衍生物、前藥、互變異構體、立體異構體、多晶型物、溶劑化物、水合物、代謝物、N-氧化物、可藥用鹽以及包含它們的組合物。本發明還涉及製備上述新化合物及其衍生物、前藥、互變異構體、立體異構體、多晶型物、溶劑化物、水合物、代謝物、N-氧化物、可藥用鹽以及包含它們的組合物的方法。這些化合物可用於治療和預防涉及α4β2煙鹼型受體的多種病症。